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Harden and become resistant to change NYT Crossword Clue

Across clue · from the December 26, 2025 puzzle

Stuck on “Harden and become resistant to change” from the New York Times Crossword? Here is the verified answer:

Answer
OSSIFY
6 letters · Across · last seen December 26, 2025

More clues from the December 26, 2025 puzzle

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